package com.lk.web.filter;

import java.io.IOException;

import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import com.lk.util.StringUtil;

public class EncodingFilter extends AbstractFilter {

	private String encoding = "UTF-8";
	@Override
	public void init(FilterConfig filterconfig) throws ServletException{
		String temp = filterconfig.getInitParameter("encoding");
		if(!StringUtil.isEmpty(temp) || !"".equals(encoding)){
			encoding = temp;
		}
	}
	
	@Override
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		request.setCharacterEncoding(encoding);
		chain.doFilter(request, response);
	}
	
}
